heroku – how to see all the logs
Update (thanks to dawmail333): heroku logs -n 1500 or, to tail the logs live heroku logs -t Heroku log documentation If you need more than a few thousand lines you can Use heroku’s Syslog Drains Alternatively (old method): $ heroku run rails c File.open(‘log/production.log’, ‘r’).each_line { |line| puts line }